The Emperor's New Clones
There is a feature-length Star Wars fanfilm I recently discovered, The Emperor's New Clones. It is a lengthy download, but it proves worthwhile.
I rather enjoyed Backyard Productions earlier effort, The Empire Strikes Backyard, but I found this to be an even more enjoyable watch. In my opinion, the effects were superb and the story was rather entertaining. This spoof is loosely based off of Star Wars Episode III: Revenge of the Sith.